Perhaps you should try some spelling variations:
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
soc ban » coc ban, so ban, soc ba
hoc ban » hoc bang, hoc dan, hoc bai
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
cua tu » cua tuc, cua su, cua te
cua cu » cua chu, cua cau, cua su

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang ma hoi. hieu ve cham ((soc ban) or (hoc ban)) nhan vien ((cua tu) OR (cua cu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang ma hoi. hieu ve cham ((soc ban) OR (hoc ban)) nhan vien ((cua tu) OR (cua cu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang ma hoi. hieu ve cham ((soc ban) or (hoc ban)) nhan vien ((cua tu) OR (cua cu))".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang ma hoi. hieu ve cham ((soc ban) or (hoc ban)) nhan vien ((cua tu) OR (cua cu))*.